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    Power Tool
    3.
    发明申请
    Power Tool 审中-公开

    公开(公告)号：US20180175757A1

    公开(公告)日：2018-06-21

    申请号：US15577556

    申请日：2016-04-29

    申请人： Hitachi Koki Co., Ltd.

    发明人： Hideyuki Tanimoto ,  Eiji Nakayama

    IPC分类号： H02P6/28 ,  B25F5/02 ,  H02K23/64 ,  H02P4/00

    CPC分类号： H02P6/28 ,  B23D47/12 ,  B25F5/00 ,  B25F5/02 ,  H02K23/64 ,  H02P4/00 ,  H02P6/085 ,  H02P25/18 ,  H02P25/188

    摘要： To provide a power tool capable of suppressing variations in motor characteristics between external power sources with different voltage while preventing an increase in the size of the power tool. The power tool includes: a motor including a stator on which a plurality of windings are wound and a rotor rotatable relative to the stator; an output unit driven by rotation of the rotor; a power source connection part connectable to an external power source serving as a driving power source of the motor; power source voltage detecting means configured to perform detecting a voltage of the external power source connected to the power source connection part; and connection form changing means configured to perform changing a connection form of the plurality of windings on the basis of the voltage of the external power source.

    Apparatus and methods of controlling electric drive with reconfigurable winding
    4.
    发明授权
    Apparatus and methods of controlling electric drive with reconfigurable winding 有权

    公开(公告)号：US09882521B2

    公开(公告)日：2018-01-30

    申请号：US15136479

    申请日：2016-04-22

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Chandra S. Namuduri ,  Lei Hao

    IPC分类号： H02P6/14 ,  H02P25/18 ,  H02P25/022 ,  H02P25/22

    CPC分类号： H02P25/188 ,  H02P25/022 ,  H02P25/22

    摘要： An electric drive system for a three-phase PM electric machine. The drive system includes a split stator winding for each phase of the machine including a first winding section and a second winding section, and an inverter circuit including a pair of inverter switches for each phase, where the pair of inverter switches for each phase is electrically coupled to the first and second winding sections for that phase in the stator. The drive system also includes a switching system including a switch circuit, where the switch circuit includes a plurality of switch assemblies for switching between a full winding control mode and a half winding control mode, where each switch assembly includes a first AC switching device and a second AC switching device, and where each switch assembly is electrically coupled to the pair of inverter switches and the first and second winding sections for a particular phase.

    Variable torque motor/generator/transmission
    6.
    发明授权
    Variable torque motor/generator/transmission 有权
    变矩电动机/发电机/变速箱

    公开(公告)号：US09479037B2

    公开(公告)日：2016-10-25

    申请号：US14815733

    申请日：2015-07-31

    申请人： Falcon Power, LLC

    发明人： James L. Bailey ,  Harley C. McDonald

    IPC分类号： B60L11/02 ,  B61C9/38 ,  H02K21/02 ,  H02K16/04 ,  H02K3/28 ,  B63H23/10 ,  B63H21/20

    CPC分类号： H02P25/188 ,  B60K6/26 ,  B60K2006/262 ,  B63H21/14 ,  B63H21/20 ,  B63H23/10 ,  B63H2021/202 ,  B63H2021/205 ,  H02K3/28 ,  H02K7/183 ,  H02K16/04 ,  H02K19/16 ,  H02K21/024 ,  H02K2213/09 ,  H02P31/00 ,  Y02T70/5236 ,  Y10S903/906

    摘要： The present disclosure is directed to an electric generator and motor transmission system that is capable of operating with high energy, wide operating range and extremely variable torque and RPM conditions. In accordance with various embodiments, the disclosed system is operable to: dynamically change the output “size” of the motor/generator by modularly engaging and disengaging rotor/stator sets as power demands increase or decrease; activate one stator or another within the rotor/stator sets as torque/RPM or amperage/voltage requirements change; and/or change from parallel to series winding configurations or the reverse through sets of 2, 4, 6 or more parallel, three-phase, non-twisted coil windings with switchable separated center tap to efficiently meet torque/RPM or amperage/voltage requirements.

    摘要翻译： 本公开涉及一种发电机和电动机传动系统，其能够以高能量，宽的工作范围和极其可变的扭矩和RPM条件运行。 根据各种实施例，所公开的系统可操作以：通过在功率需求增加或减小时模块地接合和分离转子/定子组，动态地改变电动机/发电机的输出“尺寸”; 在转子/定子组内激活一个定子或另一个转矩/ RPM或电流/电压要求变化; 和/或从并联转换到串联绕组配置或通过2,4,6或更多并联三相非扭绞线圈绕组的反向组合，具有可切换分离的中心抽头，以有效地满足转矩/ RPM或电流/电压要求 。

    MULTIPHASE INDUCTION MOTOR WITH CONFIGURABLE WINDINGS
    7.
    发明申请
    MULTIPHASE INDUCTION MOTOR WITH CONFIGURABLE WINDINGS 有权
    具有可配置绕组的多相感应电动机

    公开(公告)号：US20160090960A1

    公开(公告)日：2016-03-31

    申请号：US14502092

    申请日：2014-09-30

    申请人： CATERPILLAR INC.

    发明人： Krishnakumar D. RAMAMOORTHY

    IPC分类号： F02N11/08 ,  H02P25/20 ,  H02P25/18 ,  H02K17/14 ,  H02K3/28

    CPC分类号： F02N11/0859 ,  F02N11/04 ,  F02N11/087 ,  F02N2011/0877 ,  H02K3/28 ,  H02K17/14 ,  H02P25/188 ,  H02P25/20 ,  H02P25/22

    摘要： An electrical induction motor includes a plurality of windings, and a plurality of contactors. Each of the plurality of contactors is configured to be selectively opened or closed in a circuit including the plurality of windings to selectively connect the windings together in a star configuration wherein current flowing through the windings results in the generation of 2N magnetic poles, with N equal to the number of phases of the motor. Each of the plurality of contactors is also configured to be selectively opened or closed in the circuit including the plurality of windings to selectively connect the windings together in a mesh configuration wherein current flowing through the windings results in the generation of two magnetic poles.

    摘要翻译： 电感电动机包括多个绕组和多个接触器。 多个接触器中的每一个被配置为在包括多个绕组的电路中选择性地打开或关闭，以选择性地将绕组连接在一起，其中流过绕组的电流导致产生2N个磁极，N相等 到电机的相数。 多个接触器中的每一个还构造成在包括多个绕组的电路中被选择性地打开或关闭，以选择性地将线圈连接在一起，其中流过绕组的电流导致产生两个磁极。

    Vehicle control device and control method
    8.
    发明授权
    Vehicle control device and control method 有权
    车辆控制装置及控制方法

    公开(公告)号：US09236825B2

    公开(公告)日：2016-01-12

    申请号：US14004650

    申请日：2012-02-03

    申请人： Tomohiro Kawati ,  Akihiro Furukawa

    发明人： Tomohiro Kawati ,  Akihiro Furukawa

    IPC分类号： H02P1/46 ,  H02P25/18 ,  B60L7/14 ,  B60L11/18 ,  B60L15/00 ,  B60L15/20

    CPC分类号： H02P25/188 ,  B60L7/14 ,  B60L11/1803 ,  B60L15/007 ,  B60L15/2009 ,  B60L2240/421 ,  B60L2240/429 ,  Y02T10/642 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7275

    摘要： If a running range is selected, a current conduction mode of a motor is set to a low speed mode in which a current is conducted through a first and second windings, when a rotation speed of the motor is less than a threshold value, and is set to a high speed mode in which a current is conducted through only the first winding, when the rotation speed is equal to or greater than the threshold value. If a neutral range is selected, control of the inverter is stopped, and, a regeneration suppression control is executed to switch the current conduction mode to the high speed mode, not only in a higher-side speed range where the rotation speed is equal to or greater than the threshold value, but also in at least a part of a lower-side speed range where the rotation speed is less than the threshold value.

    摘要翻译： 如果选择运行范围，则当马达的转速小于阈值时，马达的电流传导模式被设定为通过第一和第二绕组传导电流的低速模式，并且是 当转速等于或大于阈值时，设定为仅通过第一绕组电流的高速模式。 如果选择了中立范围，则停止变频器的控制，并且执行再生抑制控制以将电流传导模式切换到高速模式，不仅在转速等于 或大于阈值，而且在旋转速度小于阈值的下侧速度范围的至少一部分中。